Quick consider the average speed of a runner who jogs around a track four times. the distance (400m) remains constant for each lap. however, each lap is run 5 seconds slower than the first. the time for each lap increases. the average speed for each lap this is an example of a(n) relationship. a) increases, direct b) decreases, direct c) increases, inverse d) decreases, inverse note: if you have a question do not ask it in the answer section of this question.

What must be the same for any two resistors that are connected in series ? a. the potntial diffrence across each b. the rate at which charge moves through each c. the rate at which energy is used by each d. the resistance to the flow of charge of each

Select the correct answer. what does the process of natural selection involve?

Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.